Applying game theory to the way virtual machines are allocated to hypervisors could improve cloud security, according to the US Army. Speaking of multiple VMs running on a hypervisor: “Herein lies the unseen danger: an attacker can target an unsecured VM, and once that VM is compromised, the attack can move on to compromise the ...
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Graphs can be easy or difficult to understand, or somewhere in-between. To give computers some idea where on the scale their output might be, and how to improve it if need be, researchers at Columbia University and Tufts University have invented a technique called ‘pixel approximate entropy’. “This is a brand new approach to working ...
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New Model in Technology & Engineering (NMiTE), Britain’s first new purpose-built university for 40 years, has been launched today at Hereford Cathedral. Dubbed NMiTE, it is the first in a wave of government-promoted higher education ‘challengers’, due to receive its initial intake of student engineers in September 2019. “Britain desperately needs to boost productivity, technical skills ...
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Purdue University is proposing a tungsten-ceramic zirconium carbide heat exchanger to increase the efficiency of solar-thermal electricity generation. Solar-thermal generation – where sunlight is focussed onto structures that absorb it as heat, which is then used to drive turbine-style generators – is proposed as an alternative to photo-voltaic generation, with the particular advantage that heat ...
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Girls who play video games are three times more likely to choose physical science, technology, engineering or maths (PSTEM) degrees compared to their non-gaming counterparts, according to the University of Surrey. A study, led by Surrey education researcher Dr Anesa Hosein – who declares a “geek girl gamer” past, according to the University, found that ...
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Octavo has squeezed a 1GHz Arm-based computer into a 27 x 27mm module. Called OSD335x C-SiP, is has an Arm Cortex-A8 Sitara AM335x processor from Texas Instruments, Arm Cortex-A8 processor, up to 1Gbyte of DDR3 ram, 4kbyte of EEPROM, two power supplies, up to 16Gbyte of eMMC flash, a MEMS clock oscillator and over 100 passive ...
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Sigfox, the medium-range wireless system for low data rate IoT communications, now covers 4.2 million square kilometres, following the addition of Austria, Liechtenstein, Romania, Norway and Kenya to its list of countries with a Sigfox presence, bringing the total to 50 countries. “The network now covers over 949 million people worldwide, with 423 Sigfox-certified devices,” ...
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Powersolve’s GFR1K5 series are 1,500W 1U ac-dc PSUs that operate over 85 to 264Vac inputs. There are four models, providing a single output of 12, 24, 48 or 56Vdc – the latter being suitable for PoE applications, according to he firm. Power density is 18W/in3 and typical efficiency is said to be 90%. All models ...
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SL Power Electronics has introduced a 120W AC to DC power supply designed for medical applications. Sized around 50 x 100 x 32mm, it us suited to 1U rack applications and provides 100W of convection power. Called MB120 Class II Input Models, the units come in 12, 15, 18 or 24Vdc output versions, and up ...
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Smiths Interconnect has announced 500mW surface-mount fixed attenuators that cover dc – 20GHz. Called TT9 SMT, the series is aimed at the defence market and “has undergone significant qualification testing with proven results of robust performance in extended durations and extreme environments”, according to the firm. Operating temperature is -55 to +150°C. Size is 1.78 ...
This story continues at Tiny surface-mount attenuators work up to 20GHz.
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